Surprised you haven’t seen other people complain about it with how much time you spend on the forums. Regardless, even though the event is over, the trigs are still around. They can spawn in minor triglavian victory systems, as well as systems that can spawn wormholes to pochven. The easiest way to deal with them is to get positive standings towards both edencom and the trigs. Then you won’t have to worry about either ever again… unless they bug out and shoot you anyway (in which case you have to file a support ticket to get reimbursed).
Oh, and obligatory HTFU, and all that 